Machine for forming heads on shoe-nail strips



2N0 Model.) 2 Sheets-Sheet 1.

M. BROOK.

MACHINE FOR FORMING HEADS ON SHOE NAIL STRIPS. No. 323,846. PatentedAug. 4, 1885.

N. PETERS PhuluLiihngnpher. Walhingmm D13.

(No Model.)

2"SheetsSheet 2. M. BROOK. v

MACHINE FOR FORMING HEADS ON SHOE NAIL STRIPS.-

Wih-l E if E 5.

UNITED STATES FATENT OFFIC MATTHIAS BROCK, OF BOSTON, MASSACHUSETTS,ASSIGNOR TO MOKAY 8t COPELAND LASTING MACHINE COMPANY, OF PORTLAND,MAINE.

MACHINE FOR FORMING HEADS ON SHOE-NAIL STRIPS.

SPECIFICATION forming part of Letters Patent No. 323,846, dated August4, 1885.

Application filed August 4, 1884. (No model.)

To all whom it may concern.-

Be it known that I, MATTHIAS BROOK, of Boston, county of Suffolk, Stateof Massachusetts, have invented an- Improvement in Machines for andMethods ofUpsetting and Forming Heads upon Sole-Fastening Strips, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like letters on the drawings representinglike parts.

In the manufacture of sole-fastening strips as heretofore practiced,wherein the nails of the said strip have had enlarged or upset headsconnected together edge to edge, the web from which the heads areproduced by an upsetting operation have been cut to leave head-formingprojections, which have subsequently been upset while the web of thestrip was held in a clamp. In accordance with my invention this previousnotching of the upper edge of the web of the strip is dispensed with,and, instead, the straight upper edge of the web is acted upon atintervals by means of a narrow upsetting-tool, which indents or upsetsonly that portion of the web which is to enter into the head, leavingprojections between the spaces and heads so formed, which projectionsare subsequently removed by a suitable cutter. One of the clamps isprovided with means to move it laterally to effect the feeding of thestrip, the said clamp preferably having a tooth to engage one of theshanks of the strip and aid in feeding the same.

Figure l is a plan view of a machine embodying my invention; Fig. 2, asectional detail of the clamps; Figs. 3 and 4, inside views of the facesof the two clamps. Figs. 5 and 6 are respectively side elevation and topview of the strip in process of having its heads formed or upset. Fig. 7is a front elevation of Fig. 1. Fig. 8 is a section on the line a; :12,Fig. 7 Fig. 9, details of the cutter; and Fig. 10 is a side elevation ofthe nail-support detached.

The frame-work A, of suitable shape to support the working parts, hasbearings for the main shaft B, which is provided with usual fast andloose pulleys, B B and fly-wheel B 50 the said shaft having secured toit the disks C and D. The disk C has cut into one side the cam-groove b,the shape of which is shown by dotted lines, Fig. 8, and at its oppositeside the said disk has a cam-groove, 0, shaped as shown in full lines,anda portion of the periphery of the said cam is cut away at two pointsto form cam-surfaces d d, as shown in Fig. 1, each of the cam-surfacesso formed being alike, thus to enable the disk provided with such camsto operate twice during each rotation of the said main shaft. The disk Dhas a portion cut away at one side (see Fig.

7) to form a cam, e. The stationary jaw f of the clamp is a block ofsteel provided with a recess or groove, 3, and let into the framework A,the said block being shown in Figs.

2 and 4 and by dotted lines in Fig. 8. The movable jaw of the clamp is ablock, f, of steel, preferably serrated, asshown in Figs. 2 and 3, andprovided, preferably, with a feeding-tooth, 4, the latter entering thegroove 3 when the jaws are closed together. The jaw-member f is suitablybolted to the jawleverf pivoted atf on an ear, f, of ahorizontallysliding carriage, E, held in suitable guideways of theframe-work A by the cap A, attached in place by the bolts a a. Thecarriage E has depending from it near one end a roller-stud, f, whichlatter is normally kept pressed against the disk D by a suitable spring,f Just below the meeting faces of the said jaws I have placed anailsupport, 9, which is shown as an L-shaped lever pivoted at g, andacted upon by a spring,

g. The upper rounded end of the short arm of the said lever (shown indetail in Fig. 10, and imperfectly, but in position, by dotted lines,Fig. 7) acts directly against the points of the shanks h of the combnail-strip, the said shanks (see Fig. 5) being connected by a 9 web, h,of substantially uniform width and thickness, or straight at the upperside of the said web, instead of notched. The nail-support 9, acted uponas described, serves to keep the upper edge of the web h against theunder side of the gage m, preferably attached to the frame-work A by ascrew, m. The distance of the under side of the said gage above the topof the jaws f f 2 determines the amount of the web of the strip which isto project above the jaws in readiness to be upset by the upsettingtooln, attached by the plate a and bolt a to the L-shaped slide ortool-carrier n Said tool-carrier is guided vertically in the frame-work,as best shown in Fig. 8, and provided with a roller-stud, a which entersthe can'rgroove 0, before referred to, the latter cam causing thepositive ascent and descent of the tool-carrier, with its attachedupsettingtool, to cause the same at the proper times to strike the upperstraight edge of the web h, as illustrated in Figs. 5 and 6, to indentand upset a portion of the said web to form enlarged heads h extendingfrom each side of the said web, as best shown in Fig. 6, leavingportions of the said web projecting like teeth, as shown at 7L3, Fig. 5.The projections h are immediately afterward cut away from the Web at apoint below the levels of the formed heads h, leaving spaces h. Theprojections h are cut away intermittingly by a punch, 0, at tached bybolt and clamp 0" 0" to a slide or carriage, 0, of dovetail shape fittedinto a groove at one side of the stationary part A of the frame-work.This slide 0 has at one side of it a projecting roller-stud, 6, which isembraced by the forked upper end of the out ter-moving lever 0, pivotedat 0 in the frame work A, and having at its lower end the rollcr-stud 0,which latter enters the cam-groove Z), before referred to. Immediatelyafter the upsetting of the web to form a head, and the cutting away ofthe projection or tooth h the disk G in its rotation brings one of thecamdepressions d or d under the roll 7 of the level-f, permitting thesaid lever to release the grip of the jawf", and at the same timewithdraw the tooth 4 from between the nailshanks integral with the webof the strip, and directly thereafter in the rotation of the disk D thecam'reeess a therein arrives opposite the rollerstud f 6 of the carriageE, thus permitting the spring f to act and pull the carriage E in thedirection of the arrow thereon, thus placing the tooth 4 of the jaw f inline just back of the shank of that nail which at the next movement ofthe upsetting-tool is to have a head formed for it, the said stripbeing, however, moved one step by the means above described before theupsetting-tool descends. The movement of the lever f 3 to enter thetooth 4 between the shanks, as stated, is effected while the roll 7 isupon the outwardly-inclined portion of one of the camsurfaees (Z or (1.As soon as the part 10 of the disk strikes the roll 7, the lever f isturned sui'liciently to cause the jaw f to place the strip upright andnip the same gently between itself and the jawf. The disk at the point10 is of smaller radius than at the point 12, and while the roll 7 is onthe part 10, of smallest radius, the depressed part c of the disk 1)passes beyond the roller-stud f and causes the said disk to move thecarriage-lever f" and jaw f so that the latter, acting against the combnail-strip, feed it for the proper distance between the jaws. The striphaving been fed, the truly circular part of the periphery 12 of the disk0 acts on the roll 7, and causes the lever f to move the jaws and clampand hold the web of the strip firmly while the upsetting-tool descends,as described. The roll 7 of the lever f is normally kept against thedisk 0 by a spring, 25, fastened to one of the ears f and acting on apin, 26, of the said lever. The guidewayin the frame-work in which thecomb nail-strip is moved is covered by a cover, 27, located at that sideof the punch a from which the comb-strip comes.

I have herein described a method of heading comb nail-strip, whichconsists in upsetting the straight edge of the said strip to form headsat proper intervals, and then cutting away the parts of the edge of thestrip be tween the parts upset for the main part of the head; but thesaid method is not herein claimed, as it forms the subject-matter ofanother application.

I claim 1. In a machine for upsetting and forming heads on combnail-strips, a stationary clamping member, a lever, f, and attachedmovable clamping member to clamp the web of the comb nail-strip betweenthem, and a carriage on which the said lever is mounted, combined withmeans, substantially as described, to operate the said lever andcarriage, whereby the strip may be clamped and fed, substantially asdescribed.

2. The clamping members and the springheld strip-support, combined withthe gage, to operate substantially as described.

3. The jaws to clamp the web of the strip, and an upsetting-tool toindent and upset parts of the web at intervals, leaving a projection atone side of the said upset portion combined with a cutter to cut awaythe said projections, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

MATTHIAS BROCK.

Vitn esses:

G. W. GREGORY, \V. H. SIGSTON.

